diff --git a/include/render_object.h b/include/render_object.h
index 5077268..b1345c3 100644
--- a/include/render_object.h
+++ b/include/render_object.h
@@ -24,7 +24,6 @@ struct render_object
 
 bool roInit(meMeshInfo* mi_in, render_object& ro_out);
 
-// TODO: make use of glIsBuffer/glDeleteBuffers
 void roFree(render_object& ro);
 
 void roDraw(render_object& ro,
diff --git a/include/util.h b/include/util.h
index 859d20e..3541bdc 100644
--- a/include/util.h
+++ b/include/util.h
@@ -41,21 +41,6 @@ struct v3f
 	real64 z;
 };
 
-struct v3i
-{
-	int32 x;
-	int32 y;
-	int32 z;
-};
-
-struct v4i
-{
-	int32 x0;
-	int32 y0;
-	int32 x1;
-	int32 y1;
-};
-
 inline real32
 SafeRatio(real32 dividend, real32 divisor)
 {